Table 5

Urinary iodine distribution by city or village, raw data for day 1, and for day 1 corrected by the average correction method and by the variance correction method

Area of residencePercentileUrinary iodine concentration distributions (µg/L)
Raw data for day 1By the average correction methodBy the variance correction method
Average of days 1 and 2Average of days 1, 2 and 3Day 1 corrected using 2 replicatesDay 1 corrected using 3 replicates
UrbanFi0.7480.833
5th56.579.488.3109.3105.8
10th76.798.4107.1123.2121.7
25th117.7131.0139.1145.8148.5
50th173.8176.7178.4179.8180.5
75th242.3234.0229.7221.7223.4
95th362.7338.6329.1300.8305.2
RuralFi0.7440.828
5th56.479.996.5118.8120.0
10th75.0101.6116.7134.5135.4
25th130.7147.7159.2168.2171.0
50th199.7204.8210.6208.9212.7
75th287.4277.7275.2262.4265.4
95th460.9416.8387.1363.1355.1
  • Fi=Sb/(Sb+Sw/di), where Sb is the SD between subjects, Sw is SD within subjects, and di is the number of observations available for each subject.